It was just one of the more well known examples and it is an example of not having control over your thoughts to even form a coherent statement that's relevant to what you were just saying. The whole they're eating cats and dogs isn't a great example as it unfortunately is a coherent statement that he intended to make, it wouldn't make someone suggest you take a cognitive test, they'd just think what we all think about it "you're a lying racist piece of shit peddling conspiracy theories some asshat lied about to suit your narrative."

I'm not trying to defend Trump in any way whatsoever, but Biden was absolutely declining in front of us. Either way, denying it or embracing it doesn't change where we're at so it's kinda pointless to argue. I was just commenting on the statement that there was no reason to test Biden when I think it could have been justified.